On Windows/WinPcap the only devices that support any of the wireless DLTs
(DLT_IEEE802_11, DLT_IEEE802_11_RADIO or eventually DLT_PPI) are the AirPcap
adapters.
Are you using an AirPcap adapter?
Have a nice day
GV
----- Original Message -----
From: "Joshua (Shiwei) Zhao" <swzhao@xxxxxxxxx>
To: "Developer support list for Wireshark" <wireshark-dev@xxxxxxxxxxxxx>;
<winpcap-users@xxxxxxxxxxx>
Sent: Tuesday, September 01, 2009 4:41 PM
Subject: [Winpcap-users] how Wireshark get linktype?
I'm using Wireshark 1.0.4 with a WiFi device. When I select the device
in capture options panel, I cannot get the expected linktype
DLT_IEEE802_11_RADIO.
I know the device driver is in monitor mode and it works if I manually
add a DLT_IEEE802_11_RADIO type there and choose it.
But how does Wireshark/winpcap get the default type, via a OID request
OID_GEN_MEDIA_SUPPORTED or OID_GEN_MEDIA_IN_USE?
I believe the driver does have support on these two OIDs.
Is this a known problem or is there sth not compatible between my
driver and Wireshark/winpcap? I know Wireshark calls pcap_datalink()
to retrieve the media type.
Many thanks,
Joshua
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